Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes
Solid polymer electrolytes (SPEs) have great potential to address the safety issues of lithium (Li)-ion batteries when compared with conventional liquid electrolytes, which makes them a promising alternative for next-generation high-energy batteries. In this work, poly(ethylene oxide)-lithium perchl...
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doaj-e86da46504b348988e589df40516a4772021-04-02T12:51:41ZengWileyHigh Voltage2397-72642016-11-0110.1049/hve.2016.0069HVE.2016.0069Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytesJun-Wei Zha0Na Huang1Kang-Qiang He2Zhi-Min Dang3Chang-Yong Shi4Robert KwokYiu Li5City University of Hong KongUniversity of Science and Technology BeijingCity University of Hong KongUniversity of Science and Technology BeijingBeijing Institute of Fashion TechnologyCity University of Hong KongSolid polymer electrolytes (SPEs) have great potential to address the safety issues of lithium (Li)-ion batteries when compared with conventional liquid electrolytes, which makes them a promising alternative for next-generation high-energy batteries. In this work, poly(ethylene oxide)-lithium perchlorate (PEO–LiClO(4)) polymer electrolytes for Li-ion batteries were prepared using electrospinning. The crystallinity, ionic conductivity as well as mechanical properties were investigated. Ionic conductivities and mechanical properties of PEO–LiClO(4) based SPE have been obviously increased by incorporating modified TiO(2) nanofibres (TNFs) than TiO(2) nanoparticles (TNPs), due to that both TNFs and TNPs can decrease the crystalline phase concentration of PEO and increase segmental flexibility of PEO. The SPE with 3 wt% TNFs exhibits the highest conductivity of 5.308 × 10^−5 S cm^−1 at 20°C and higher tensile strength of 13.8 MPa. These results highlight the potential of utilising the electrospinning method to improve the ionic conductivity of SPEs.https://digital-library.theiet.org/content/journals/10.1049/hve.2016.0069nanofibresnanocompositesionic conductivitypolymer electrolyteslithium compoundssecondary cellselectrospinningnanoparticleselectrospun poly(ethylene oxide) nanofibrous compositeenhanced ionic conductivityflexible solid polymer electrolyteSPElithium batteryLi-ion batteryliquid electrolytehigh-energy batterypoly(ethylene oxide)-lithium perchloratePEO–LiClO(4)mechanical propertymodified TiO(2) nanofibreTNFTiO(2) nanoparticleTNPcrystalline phase concentrationtensile strengthelectrospinning methodtemperature 20 degCpressure 13.8 MPa |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jun-Wei Zha Na Huang Kang-Qiang He Zhi-Min Dang Chang-Yong Shi Robert KwokYiu Li |
spellingShingle |
Jun-Wei Zha Na Huang Kang-Qiang He Zhi-Min Dang Chang-Yong Shi Robert KwokYiu Li Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes High Voltage nanofibres nanocomposites ionic conductivity polymer electrolytes lithium compounds secondary cells electrospinning nanoparticles electrospun poly(ethylene oxide) nanofibrous composite enhanced ionic conductivity flexible solid polymer electrolyte SPE lithium battery Li-ion battery liquid electrolyte high-energy battery poly(ethylene oxide)-lithium perchlorate PEO–LiClO(4) mechanical property modified TiO(2) nanofibre TNF TiO(2) nanoparticle TNP crystalline phase concentration tensile strength electrospinning method temperature 20 degC pressure 13.8 MPa |
author_facet |
Jun-Wei Zha Na Huang Kang-Qiang He Zhi-Min Dang Chang-Yong Shi Robert KwokYiu Li |
author_sort |
Jun-Wei Zha |
title |
Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes |
title_short |
Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes |
title_full |
Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes |
title_fullStr |
Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes |
title_full_unstemmed |
Electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes |
title_sort |
electrospun poly(ethylene oxide) nanofibrous composites with enhanced ionic conductivity as flexible solid polymer electrolytes |
publisher |
Wiley |
series |
High Voltage |
issn |
2397-7264 |
publishDate |
2016-11-01 |
description |
Solid polymer electrolytes (SPEs) have great potential to address the safety issues of lithium (Li)-ion batteries when compared with conventional liquid electrolytes, which makes them a promising alternative for next-generation high-energy batteries. In this work, poly(ethylene oxide)-lithium perchlorate (PEO–LiClO(4)) polymer electrolytes for Li-ion batteries were prepared using electrospinning. The crystallinity, ionic conductivity as well as mechanical properties were investigated. Ionic conductivities and mechanical properties of PEO–LiClO(4) based SPE have been obviously increased by incorporating modified TiO(2) nanofibres (TNFs) than TiO(2) nanoparticles (TNPs), due to that both TNFs and TNPs can decrease the crystalline phase concentration of PEO and increase segmental flexibility of PEO. The SPE with 3 wt% TNFs exhibits the highest conductivity of 5.308 × 10^−5 S cm^−1 at 20°C and higher tensile strength of 13.8 MPa. These results highlight the potential of utilising the electrospinning method to improve the ionic conductivity of SPEs. |
topic |
nanofibres nanocomposites ionic conductivity polymer electrolytes lithium compounds secondary cells electrospinning nanoparticles electrospun poly(ethylene oxide) nanofibrous composite enhanced ionic conductivity flexible solid polymer electrolyte SPE lithium battery Li-ion battery liquid electrolyte high-energy battery poly(ethylene oxide)-lithium perchlorate PEO–LiClO(4) mechanical property modified TiO(2) nanofibre TNF TiO(2) nanoparticle TNP crystalline phase concentration tensile strength electrospinning method temperature 20 degC pressure 13.8 MPa |
url |
https://digital-library.theiet.org/content/journals/10.1049/hve.2016.0069 |
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